Quote:
Originally Posted by Raven86WPB
I've always been boggled by this when reading about our cars and UEL's, so when people say the UEL is better for torque and the EL better for top end, is there any truth to that?
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You could just design the EL header for where you want the power.
For a UEL header, I found no advantage, science says it's bad, race engine/exhaust builders say it's bad, internet on the other hand is of two minds.
I have found that the internet is generally waffle.
IMO the best looking pre-fabed headers on the market look like ACE.
ACE have different headers for different HP levels, rim sizes and final drives, both 4:1 and 4:2:1
Plus a tuned header keeps the fluid and thermal dynamic gods happy.
But not my wallet.
Me, If I could justify spending the coin (most likely $2.5-3k) to try another header, a ACE 350 looks like a good bit of kit with alot of though gone into the design.
Pity about the cost to get one to my door.
But as I don't race for sheep stations I'll just deal with my comprised catless OEM 4:2:1 ELish header.
TL;DR this linky explains the basics much better than I ever could >
https://www.onallcylinders.com/2015/...header-tuning/